THIN-FILM MAGNETIC HEAD, METHOD OF MANUFACTURING THE SAME, HEAD GIMBAL ASSEMBLY, AND HARD DISK DRIVE

摘要

A thin-film magnetic head is constructed such that a main magnetic pole layer, a write shield layer, a gap layer, and a thin-film coil are laminated on a substrate. The thin-film magnetic head has a leading shield part opposing the main magnetic pole layer on the substrate side of the main magnetic pole layer, a substrate side shield part has contact with the leading shield part. The thin-film coil has a substrate side coil layer between the main magnetic pole layer and substrate. The spaces to the substrate about a leading lower end face of the leading shield part, a shield upper end face of the substrate side shield part, and coil upper end face of the substrate side coil layer are formed to be equal to each other. The depth of the leading shield part is formed to be smaller than the depth of the substrate side shield part.

主权项

1. A thin-film magnetic head constructed such that a main magnetic pole layer having a magnetic pole end face on a side of a medium-opposing surface opposing a recording medium, a write shield layer having a write shield end face disposed in the medium-opposing surface, a gap layer formed between the main magnetic pole layer and write shield layer, and a thin-film coil wound around any of the main magnetic pole layer, the write shield layer or a shield magnetic layer connected the main magnetic pole layer are laminated on a substrate:
wherein the thin-film coil comprises a substrate side coil layer disposed between the main magnetic pole layer and the substrate, wherein the shield magnetic layer comprising:
a leading shield part having a leading front end face disposed in the medium-opposing surface, and opposing the main magnetic pole layer through a nonmagnetic thin-film on the substrate side of the main magnetic pole layer; anda substrate side shield part having a shield upper end face in direct contact with a leading lower end face disposed at a position closest to the substrate in the leading shield part, and a shield front end face disposed in the medium-opposing surface, wherein spaces to the substrate about the leading lower end face of the leading shield part, the shield upper end face of the substrate side shield part, and a coil upper end face disposed at a position most distanced from the substrate in the substrate side coil layer are formed to be equal to each other, wherein the leading shield part has a tilted rear end face tilted to come closer to the medium-opposing surface toward the main magnetic pole layer, and wherein a depth of the leading shield part along an intersecting direction intersecting the medium-opposing surface like perpendicular is formed to be smaller than a depth of the substrate side shield part along the intersecting direction.